| RefNo | RB/1/10/90 |
| Previous numbers | BP 10, fol. 128 |
| Level | Item |
| Title | Material relating to 'Usefulness'. |
| Date | 1660s |
| Description | Endorsed 'Essay 4'.\r\nHand: G |
| Language | English |
| Extent | Fol. 128 (1 leaf) |
| Format | Manuscript |
| AccessStatus | Open |
| RelatedMaterial | Published in 'Works', vol. 13, pp. 346-7. |